DE2547507A1 - STRIP ELEMENT FOR VEHICLE TIRE MANUFACTURING - Google Patents

Description

Meissner & Meissner

PATENT AGENCY OFFICE

BERLIN - MUNICH

PATENT LAWYERS

DIPL-ING. W. MEISSNER (BLN) DIPL-ING. P. E. MEISSNER (MCHN) DIPL-ING. H.-J. PRESTING (BLN)

1 BERLIN 33, HERBERTSTR. 22nd

Your sign Your letter from Unterzeichen Berlin, the

78O5-GE

THE GOODYEAE TIRE & RUBBER COkPAHY,

Akron, Ohio 44316, USA

Strip element for the manufacture of I-vehicle tires

II OKI. 1575

The invention relates to the construction of vehicle tires in general and to their conveyance from Point of preparation to point of use of narrow strip elements of a tire on the tire building machine, at which the tire is manufactured, in particular.

In manufacturing tires for motor vehicles and the like, many structural elements become in the form of narrow strips for various known purposes in the tire body in addition to the ordinary carcass, the layers, introduced the beads and the treads. Particular examples are usually hackers, scrapers, toe strips, Pointed strips, shoulder wedges, and the like. To shorten the description, these narrow strips will be general

809818/0853 " ² "

BORO MONKS: TELEX: TELEQRAM: PHONE: BANK ACCOUNT: CHECK ACCOUNT: 8 MONKS 22 1-85644 INVENTION BERLIN BERLINER BANK AQ. W. MEISSNER, BLN-W ST. ANNASTR. 11 INVENd BERLIN 030/885 8087 BERLIN 31 12283-109 TEL .: 089/22 3644 030/88623 82 3695716000

referred to as stripes.

Usually such stripes were made from the point on which they are prepared, brought to a point that is convenient for the tire builder, who then this by hand on the tire, which is made on an ordinary building drum. Lengths of the strips usually advertise either in small pods or pre-cut and delivered on trays to the tire builder. These strips are usually very sticky and difficult to handle.

It is therefore a main object of the invention, the efficiency and to improve the economics of conveying these strips. In short, according to one aspect of the Invention is a supply reel with a tire building strip provided, which contains an underframe with bearings and track wheels, with a cylinder rotatable is on the bearings and also has a continuous length of tire building strips and a continuous one Length of non-adhesive screen, the Strip and the canvas wall in face-to-face contact and wrapped around the cylinder in several layers will. The strips of each ply are arranged in a spiral around the cylinder and become more spiral in shape I reversed in successive shifts *

In another aspect, the invention includes a method of supplying long strips to a tire machine involving the wrapping of the strips with a divider around a rotatable cylinder and the cross of the cylinder to and from on its own axis as the cylinder rotates around the strip in successive layers of opposite-

60 9 818/0853

to wind the ten guide spirals on the cylinder.

Yet another aspect of the invention is a method for conveying a running length of strip to a tire machine from a supply reel with a unwinding strip while scanning the lateral displacement of the strip with respect to the machine and crossing the coil parallel to the axis of the machine according to the side shift, to correct this.

The person skilled in the art familiar with the basic features of the invention, who can do this, certain preferred embodiments of the invention show the best way to put this into practice. These exemplary embodiments are described with reference to the drawing. In this one is:

Figure 1 is an illustration of the supply reel for the narrow strip according to the invention which the strip picks up from a preparatory device;

FIG. 2 shows a side view of the arrangement according to FIG. 1;

Figure 3 is a representation of the supply reel for the narrow strip of Figure 1, which the strip a tire building machine supplies;

Figure 4- is a side view of the arrangement of Figure 3; and

Figure 5 is a side view of part of the spool, as seen from line 5-5 of Figure 4.

The supply reel 10 with the narrow strip still the

609818/0853 - ⁴ -

25A7507

The invention is shown in Figs. 1 and 2 in an inflated condition, i.e. with a wound strip which is received by a conventional device 12 used to prepare the strip. In Figures 3 and 4, the coil 10 is in operation for delivery of the strip on a tire machine 14. The device 12 may be, for example, a calendar, an extruder, or a leader-cutter-splicer, which is suitable for the Serve pretreatment of strips, which is the subject of the invention. As this device generally is known and does not come under the patent application, its description is not necessary.

The supply reel 10 contains a circular cylinder 16 with a rigid surface and a conventional shaft 18, which is kept in bearings that are located on a chassis 22 This is provided with track wheels 24-, which rest on a guide rail 26 which runs parallel to the axis of the cylinder 16. A tab 28 on the chassis is releasable with a traverse mechanism 30 connected, through which the coil 30 transversely is moved towards and away from the direction of movement of the wound strip. 31 cL®s cross mechanism on a platform there is a take-up drive which contains a wedge clutch 33 which is releasable with the shaft connected is. The coupling contains a flexible element 35 which is attached to the end of the winding shaft 37 which lies in the bearings 39 on the platform. An ordinary gear motor 41 or the like is via a flexible drive 43 is connected to the shaft 37 and thus rotates the cylinder 16.

The crossover device 30 (FIG. 5) contains a spindle 45, which runs parallel to the cylinder 16 and is

609818/0853

rotates in bearings attached to the platform. The spindle is screwed into a nut 4-7, which is used to Floor is attached so that the platform 31 and the chassis 22 when connected to the platform moves according to the turning of the screw. The spindle 4-5 is via two flexible drives 50, 52 with chain and sprocket, which are brought into engagement with the shaft 37 by means of a conventional coupling 54 · »56 can be connected to the shaft, reversing the drive to the spindle, the two couplings are operated according to the limit switch 5S, those with the outer ends of the transverse movement are set in the usual way.

To load the cylinder, the strip S is removed from the preparation device 12 by means of a conventional Tensioning and guiding device, which is shown as an oscillating roller 63 and two fixed support rollers 65, 67, is delivered and passed from there over a connecting roller 70.

At the connecting roller 70, the strip S is in front of a Brought a divider to prevent successive turns of the strip S on the spool 10 stick to each other. The canvas 0 is taken from a normal reel? 2 as the running length and from the one to two or more times the width of the strip S unwound. The strip S and the canvas G are of the connecting roller is guided onto the supply reel cylinder and wrapped around by rotating the cylinder while the cylinder is parallel in time relation thereto to its axis and perpendicular to the direction of movement

609818/0853

direction of the two strips is crossed back and forth.

The strip supply is on the surface of the cylinder in a series of helical turns from its starting point of contact before a point about at The end of the cylinder is wound where the transverse movement corresponds to the action of the limit switches and the corresponding clutch is stopped and then reversed in its sighting while the cylinder is moving keeps turning. The strip is further wound up in a second layer, in the hand or the front part of the spiral is reversed and the strip forms another layer almost towards the opposite end of the cylinder while the associated limit switch and actuate the other clutch to ground and reverse the traverse direction again. This episode is repeated to load the required length of strip S into the supply reel.

The chassis filled with the described method is attached to both the coupling 33 & ls and the tab 28 separated from traverse mechanism 30. The supply spool is then brought into connection with the tire machine 14, as FIGS. 3 and 4 show. The tab 28 then connects to platform 78 of a second traverse mechanism 80 and the shaft 18 is connected by the coupling 82 of the unwinding shaft 84-. The Vitelle 84 resides in bearings 86 attached to the platform. A common brake 88 works with one Brake disk 91 together, which is attached to the V / elle 84 and results in a corresponding back tension in the strip S when it is delivered to the tire machine 14 will.

609818/0853

The second traverse mechanism 80 includes a hydraulic one Cylinder 93 <that parallel to the winding shaft and extends to the axis of the cylinder 16 and is fixed with respect to the working plane. The piston 94- and the rod 95 of the hydraulic cylinder 93 are connected to a brake 96 on the platform 78. Hydraulic fluid from a (not shown ^ conventional hydraulic energy source operates under the control of a conventional Hegel valve 97 and moves the traverse mechanism 80 and supply spool 10 transverse to the direction of movement of the strip S to the tire machine 14 ·.

The strip S, together with the screen 0, becomes a rotating roller via a conventional lateral displacement sensor 100 102 while the canvas G to strip 3 is diverged and passed to a winding core 104. This winding core is guided by a drive in such a way that that it pulls the canvas off the spool 10. The strip S is taken from the roll 102 via a conventional one Tensioning and guiding device 105 for the tire on the Rgifenmaschine 14- led.

In operation, when the canvas G and the strip S of the supply reel 10 are withdrawn, causes the lateral displacement of the strip S, which results from the The helix angle on the supply spool results in the strip gradually sideways, i.e. transverse to the desired orientation is moved with the tire. The side shift sensor 100 generates a signal that is sent to the control valve 97 is passed on. The control valve then sets the effective pressure on one or the other

- 8 609818/0853

Side of the piston ° A in the hydraulic cylinder 93 so sufficient for the traversing mechanism to move the supply spools 10 that are in the correct orientation corrected the strip with the tire machine. This correction takes place practically all the time, which is why maintains the spool 10 in approximate alignment when the strip is added to the drum.

Those skilled in the art can use the described crossing mechanism replace with numerous other mechanisms. Furthermore, the spiral winding of the strip material is general known. Despite advantages, it has been shown in the practice of the invention that the spiral winding, the sometimes referred to as level winding, because of the type and shape of the strip elements especially for the Tire manufacturing has not been applied as described here. These are evenly sticky, light plastically deformable and difficult to handle and have, compared to the known level winding of threads, Cables, wires, etc. do not have uniform cross-sections of the same dimensions, but must be turned around without twisting their length can be increased or unwound.

The invention results in a greatly increased capacity in each Cylinder of strip supply spools, allows more tires to be made from a single spool Significantly less disruption to build-up to restore and pretreatment of the strip. Another advantage is a significant reduction in the floor space for material in the case of procedural inventories and a significant reduction in the time and cost of moving the material. The strip is less damaged suspended because the supply is more stable

- 9 -609818/0853

as a supply roll that has just been wound up, i.e. in a plane perpendicular to the roll axis.

There are particular embodiments and details to explain the invention have been shown However, many changes can be made by those skilled in the art without departing from the spirit and scope of the invention.

- patent claims -

- 10 609818/0853

Claims (6)

Patent claims: Μ, j Supply spool for a narrow »strip as an element xur vehicle tires for conveying the strip to a tire building machine, which has a chassis with bearings and Has track wheels and a cylinder rotatable on the bearings, characterized in that a continuous Strip (S) of tire construction stock and a continuous strip (0) of non-stick release material from of infinite length and coiled in face-to-face contact with one another and free from twisting are laid around the cylinder in several layers and that the strips of each layer spiral around the surface of the cylinder and arranged parallel to this and in a spiral guide in successive layers are reversed. 2. Method of supplying continuous strips for manufacturing vehicle tires on a tire building machine, in which the strip (S) is wound around the cylinder of a supply reel and then transferred from the reel to the machine is, characterized in that the strips (S). 609818/0853 - 11 - BORO MONKS: TELEX: TELEGRAM: TELEPHONE: - BANK ACCOUNT: CHECK ACCOUNT: 8 MQNCHEN 22 1-85644 INVENTION BERLIN BERLINER BANK AQ. W. MEISSNER, BLN-W ST. ANNASTR. 11 INVENd BERLIN 030/885 60 37 BERLIN 31 122 82-109 TEL: 089/22 35 44 030/838 23 82 3695716000 together with a dividing linen strip (G) in a spiral shape is applied around the coil cylinder (16) in several continuous windings. 3. The method according to claim 2, characterized in that the vehicle body strip (S) and the canvas strip- fen (G) are wound around the bobbin cylinder (16) while the bobbin cylinder running on its own cum is crossed back and forth and rotates around its axis. 4 ·. Method according to claims 2 and 3 »characterized in that that the tire building strip (8) and the canvas strip (C) to be unwound from the cylinder (16) and the lateral displacement of one of the strips in the direction is determined parallel to the axis of rotation of the cylinder, and that the bobbin cylinder (16) on its axis accordingly the detected lateral displacement is traversed to deliver the strip perpendicular to the axis to cause and that the canvas strip (c) is separated from the tire building strip (S) before this by one Tire building machine (14) is wound. 6 U 9818/0853 Blank page